misc spelling/grammar fixes

Originally committed as revision 14367 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/h264.c

@@ -133,7 +133,7 @@ static void fill_caches(H264Context *h, int mb_type, int for_deblock){
             topleft_xy -= s->mb_stride;
         } else if(bottom && curr_mb_frame_flag && !left_mb_frame_flag) {
             topleft_xy += s->mb_stride;
-            // take topleft mv from the middle of the mb, as opposed to all other modes which use the bottom-right partition
+            // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition
             topleft_partition = 0;
         }
         if (bottom
@@ -292,7 +292,7 @@ static void fill_caches(H264Context *h, int mb_type, int for_deblock){
 4 L . .L . . . .
 5 L . .. . . . .
 */
-//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
+//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec)
     if(top_type){
         h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
         h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
@@ -673,7 +673,7 @@ static inline void write_back_non_zero_count(H264Context *h){
 }
 
 /**
- * gets the predicted number of non zero coefficients.
+ * gets the predicted number of non-zero coefficients.
  * @param n block index
  */
 static inline int pred_non_zero_count(H264Context *h, int n){
@@ -728,7 +728,7 @@ static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, in
             if(MB_FIELD
                && !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
                && i >= scan8[0]+8){
-                // leftshift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's ok.
+                // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK.
                 SET_DIAG_MV(/2, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2);
             }
         }
@@ -1454,7 +1454,7 @@ static int decode_rbsp_trailing(H264Context *h, const uint8_t *src){
 }
 
 /**
- * idct tranforms the 16 dc values and dequantize them.
+ * IDCT transforms the 16 dc values and dequantizes them.
  * @param qp quantization parameter
  */
 static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
@@ -1486,7 +1486,7 @@ static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
         const int z2= temp[4*1+i] - temp[4*3+i];
         const int z3= temp[4*1+i] + temp[4*3+i];
 
-        block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_resdual
+        block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_residual
         block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
         block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
         block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
@@ -1495,7 +1495,7 @@ static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
 
 #if 0
 /**
- * dct tranforms the 16 dc values.
+ * DCT transforms the 16 dc values.
  * @param qp quantization parameter ??? FIXME
  */
 static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
@@ -1684,7 +1684,7 @@ static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square,
     const int pic_width  = 16*s->mb_width;
     const int pic_height = 16*s->mb_height >> MB_FIELD;
 
-    if(!pic->data[0]) //FIXME this is unacceptable, some senseable error concealment must be done for missing reference frames
+    if(!pic->data[0]) //FIXME this is unacceptable, some sensible error concealment must be done for missing reference frames
         return;
 
     if(mx&7) extra_width -= 3;
@@ -2226,7 +2226,7 @@ static int frame_start(H264Context *h){
     /*
      * MPV_frame_start uses pict_type to derive key_frame.
      * This is incorrect for H.264; IDR markings must be used.
-     * Zero here; IDR markings per slice in frame or fields are OR'd in later.
+     * Zero here; IDR markings per slice in frame or fields are ORed in later.
      * See decode_nal_units().
      */
     s->current_picture_ptr->key_frame= 0;
@@ -2256,7 +2256,7 @@ static int frame_start(H264Context *h){
 
 //    s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
 
-    // We mark the current picture as non reference after allocating it, so
+    // We mark the current picture as non-reference after allocating it, so
     // that if we break out due to an error it can be released automatically
     // in the next MPV_frame_start().
     // SVQ3 as well as most other codecs have only last/next/current and thus
@@ -2467,7 +2467,7 @@ static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
         linesize   = h->mb_linesize   = s->linesize * 2;
         uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
         block_offset = &h->block_offset[24];
-        if(mb_y&1){ //FIXME move out of this func?
+        if(mb_y&1){ //FIXME move out of this function?
             dest_y -= s->linesize*15;
             dest_cb-= s->uvlinesize*7;
             dest_cr-= s->uvlinesize*7;
@@ -2876,7 +2876,7 @@ static int fill_default_ref_list(H264Context *h){
         int out_i;
         int limit= INT_MIN;
 
-        /* sort frame according to poc in B slice */
+        /* sort frame according to POC in B slice */
         for(out_i=0; out_i<h->short_ref_count; out_i++){
             int best_i=INT_MIN;
             int best_poc=INT_MAX;
@@ -2903,7 +2903,7 @@ static int fill_default_ref_list(H264Context *h){
 
         tprintf(h->s.avctx, "current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
 
-        // find the largest poc
+        // find the largest POC
         for(list=0; list<2; list++){
             int index = 0;
             int j= -99;
@@ -3033,7 +3033,7 @@ static int decode_ref_pic_list_reordering(H264Context *h){
 
     print_short_term(h);
     print_long_term(h);
-    if(h->slice_type_nos==FF_I_TYPE) return 0; //FIXME move before func
+    if(h->slice_type_nos==FF_I_TYPE) return 0; //FIXME move before function
 
     for(list=0; list<h->list_count; list++){
         memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
@@ -3078,7 +3078,7 @@ static int decode_ref_pic_list_reordering(H264Context *h){
                             if(ref->data[0] != NULL &&
                                    ref->frame_num == frame_num &&
                                    (ref->reference & pic_structure) &&
-                                   ref->long_ref == 0) // ignore non existing pictures by testing data[0] pointer
+                                   ref->long_ref == 0) // ignore non-existing pictures by testing data[0] pointer
                                 break;
                         }
                         if(i>=0)
@@ -3920,7 +3920,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
     h->slice_type= slice_type;
     h->slice_type_nos= slice_type & 3;
 
-    s->pict_type= h->slice_type; // to make a few old func happy, it's wrong though
+    s->pict_type= h->slice_type; // to make a few old functions happy, it's wrong though
     if (s->pict_type == FF_B_TYPE && s0->last_picture_ptr == NULL) {
         av_log(h->s.avctx, AV_LOG_ERROR,
                "B picture before any references, skipping\n");
@@ -3933,13 +3933,13 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
         return -1;
     }
     if(!h0->pps_buffers[pps_id]) {
-        av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
+        av_log(h->s.avctx, AV_LOG_ERROR, "non-existing PPS referenced\n");
         return -1;
     }
     h->pps= *h0->pps_buffers[pps_id];
 
     if(!h0->sps_buffers[h->pps.sps_id]) {
-        av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
+        av_log(h->s.avctx, AV_LOG_ERROR, "non-existing SPS referenced\n");
         return -1;
     }
     h->sps = *h0->sps_buffers[h->pps.sps_id];
@@ -4130,7 +4130,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
         h->redundant_pic_count= get_ue_golomb(&s->gb);
     }
 
-    //set defaults, might be overriden a few line later
+    //set defaults, might be overridden a few lines later
     h->ref_count[0]= h->pps.ref_count[0];
     h->ref_count[1]= h->pps.ref_count[1];
 
@@ -4524,7 +4524,7 @@ static void decode_mb_skip(H264Context *h){
 
 /**
  * decodes a macroblock
- * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
  */
 static int decode_mb_cavlc(H264Context *h){
     MpegEncContext * const s = &h->s;
@@ -5642,7 +5642,7 @@ static inline void compute_mb_neighbors(H264Context *h)
 
 /**
  * decodes a macroblock
- * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
+ * @returns 0 if OK, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
  */
 static int decode_mb_cabac(H264Context *h) {
     MpegEncContext * const s = &h->s;
@@ -7696,7 +7696,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
         else if(err == 1) {
             /* Slice could not be decoded in parallel mode, copy down
              * NAL unit stuff to context 0 and restart. Note that
-             * rbsp_buffer is not transfered, but since we no longer
+             * rbsp_buffer is not transferred, but since we no longer
              * run in parallel mode this should not be an issue. */
             h->nal_unit_type = hx->nal_unit_type;
             h->nal_ref_idc   = hx->nal_ref_idc;
@@ -7731,7 +7731,7 @@ static int decode_frame(AVCodecContext *avctx,
     s->flags= avctx->flags;
     s->flags2= avctx->flags2;
 
-   /* end of stream, output whats still in the buffers */
+   /* end of stream, output what is still in the buffers */
     if (buf_size == 0) {
         Picture *out;
         int i, out_idx;